CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands	Total	Redeemable Noncontrolling Interests [Member]	Common Stock [Member]	Class A Common Stock [Member]	Capital in Excess of Par Value [Member]	Deferred Compensation Obligation [Member]	HEICO Stock Held by Irrevocable Trust [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total Shareholders Equity [Member]
Balances at Oct. 31, 2010		$ 55,048	$ 131	$ 199	$ 227,993	$ 0	$ 0	$ (124)	$ 240,913	$ 85,714	$ 554,826
Comprehensive income	98,465	11,264	0	0	0	0	0	3,012	72,820	11,369	87,201
Cash dividends		0	0	0	0	0	0	0	(4,494)	0	(4,494)
Five-for-four common stock split			33	50
Five-for-four common stock split					(83)				(102)		(102)
Tax benefit from stock option exercises		0	0	0	7,703	0	0	0	0	0	7,703
Stock option compensation expense		0	0	0	2,647	0	0	0	0	0	2,647
Proceeds from stock option exercises	2,167	0	9	2	2,156	0	0	0	0	0	2,167
Redemptions of common stock related to stock option exercises		0	(3)	0	(14,295)	0	0	0	0	0	(14,298)
Acquisitions of noncontrolling interests		(7,241)	0	0	0	0	0	0	0	0	0
Distributions to noncontrolling interests		(8,893)	0	0	0	0	0	0	0	(6,000)	(6,000)
Noncontrolling interests assumed related to acquisition		5,612	0	0	0	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests		9,640	0	0	0	0	0	0	(9,640)	0	(9,640)
Deferred Compensation Obligation		0	0	0	0	522	(522)	0	0	0	0
Other		0	1	(1)	(1)	0	0	145	0	0	144
Balances at Oct. 31, 2011		65,430	171	250	226,120	522	(522)	3,033	299,497	91,083	620,154
Comprehensive income	100,218	9,526	0	0	0	0	0	(6,457)	85,147	12,002	90,692
Cash dividends		0	0	0	0	0	0	0	(5,689)	0	(5,689)
Five-for-four common stock split			42	63
Five-for-four common stock split					(105)				(16)		(16)
Issuance of common stock to HEICO Savings and Investment Plan		0	0	0	982	0	0	0	0	0	982
Tax benefit from stock option exercises		0	0	0	13,164	0	0	0	0	0	13,164
Stock option compensation expense		0	0	0	3,948	0	0	0	0	0	3,948
Proceeds from stock option exercises	833	0	0	2	831	0	0	0	0	0	833
Redemptions of common stock related to stock option exercises		0	0	0	(307)	0	0	0	0	0	(307)
Acquisitions of noncontrolling interests		(7,616)	0	0	0	0	0	0	0	0	0
Distributions to noncontrolling interests		(9,090)	0	0	0	0	0	0	0	0	0
Noncontrolling interests assumed related to acquisition		3,918	0	0	0	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests		3,775	0	0	0	0	0	0	(3,775)	0	(3,775)
Deferred Compensation Obligation		0	0	0	0	301	(301)	0	0	0	0
Other		1,223	0	0	(1)	0	0	(148)	(79)	1	(227)
Balances at Oct. 31, 2012	719,759	67,166	213	315	244,632	823	(823)	(3,572)	375,085	103,086	719,759
Comprehensive income	128,279	8,386	0	0	0	0	0	3,718	102,396	13,779	119,893
Cash dividends		0	0	0	0	0	0	0	(120,361)	0	(120,361)
Five-for-four common stock split			54	79
Five-for-four common stock split					(133)				(17)		(17)
Issuance of common stock to HEICO Savings and Investment Plan		0	0	0	2,985	0	0	0	0	0	2,985
Tax benefit from stock option exercises		0	0	0	5,191	0	0	0	0	0	5,191
Stock option compensation expense		0	0	0	5,117	0	0	0	0	0	5,117
Proceeds from stock option exercises	463	0	1	2	460	0	0	0	0	0	463
Redemptions of common stock related to stock option exercises		0	0	0	(2,364)	0	0	0	0	0	(2,364)
Acquisitions of noncontrolling interests		(16,610)	0	0	0	0	0	0	0	0	0
Distributions to noncontrolling interests		(7,579)	0	0	0	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests		7,454	0	0	0	0	0	0	(7,454)	0	(7,454)
Deferred Compensation Obligation		0	0	0	0	315	(315)	0	0	0	0
Other		401	0	0	1	0	0	(2)	0	24	23
Balances at Oct. 31, 2013	$ 723,235	$ 59,218	$ 268	$ 396	$ 255,889	$ 1,138	$ (1,138)	$ 144	$ 349,649	$ 116,889	$ 723,235